You might not realise that the seals on your doors and windows could prevent smoke and draughts from getting in as well as providing a high level of noise prevention. It depends on the condition of your Acoustic seals but new ones or ones that are in good order should easily be able to provide a comprehensive sealing action. Not only are Acoustic seals great at both trapping noise or preventing it from entering into the building. Combination Acoustic seals work for noise abatement purposes but they also incorporate the fire and smoke sealing properties as well. Fitted to the head or jambs of door frames they can be highly effective. In fact, Acoustic seals can be fitted into a number of positions and this includes into the frame itself. A rebate can be made into the frame and the acoustic seal can be neatly tucked inside it. Installing the Acoustic seals is a fairly simple process and a detailed fit can be acquired every time one is installed. Seals on your doors and windows can help to keep noise out as well as protecting the inhabitants of the home from smoke and other harmful materials.
Noise suppression is something that has to be considered if we are to live in a civilised society. We can all do something to keep our noise levels at a suitable level. Our properties can be fitted with items of acoustic insulation that will provide discreet dampening on our doors. This dampening comes in the guise of Acoustic Door Seals and it can work wonders once it has been installed. Fitted on door jambs and on the top or bottom of doors the Acoustic Door Seals will help to suppress any noise. They make quite a difference to the noise levels that are sent out from within. Moreover, certain types of Acoustic Door Seals products have other beneficial qualities. Dual seals are available that not only have acoustic qualities they can be effective against smoke. Smoke won`t get in through the gaps in the door because the seals will be stopping it. So, not only does an Acoustic Door Seals help to keep noise levels down.
Without Fire Door Seals in place smoke can escape through the gaps around the door`s perimeter, with the fire seals in place the smoke is held back. We all know the effects that smoke can have on the system and if too much is inhaled people can pass out. Therefore it`s essential in workplaces to have Fire Door Seals placed into position on any fire door. The marvellous thing about modern door seals is they have a number of useful applications. Not only can Fire Door Seals stop smoke from entering the building they can help with the acoustics of the building as well. If it?s a noisy environment the Fire Door Seals can help to reduce the levels of noise that escapes from the building or room. What`s more, with Fire Door Seals in place draughts are eliminated so chills won?t affect any workers. They might be quite simple when you think about it but Fire Door Seals are actually highly important items. With the seals in place smoke will be contained, without the seals goodness knows what will happen.
Acoustics is a broad and complex subject often requiring the advice of qualified Acoustic Engineers.
Fundamentally, sound is produced by pressure energy that can be heard by humans at certain frequencies. Where doorsets are concerned, the performance requirement generally relates to sound attenuation, i.e. the capability of a barrier to reduce the sound pressure levels (loudness) of unwanted sounds such that the resultant sound levels do not interfere with the use of a protected space.
Loudness is measured in decibels which provides for a convenient measure of sound pressure that might otherwise be expressed in pascals (N/m2). The use of decibels (dB) provides for a logarithmic scale where, as a ‘rule of thumb’, a variation of 3dB equals a halving or doubling of loudness in the range normally applicable to doorsets.
When carrying out the BS EN ISO 140-3 : 1995 test, sound is created in a transmitting room. The sound passes through the specimen and the resultant sound pressure levels are measured in a receiving room. The standard provides for the measurement of the reduction of loudness through the specimen over a range of frequencies. In Europe the measured frequency range is from 100Hz (hertz - or wavelengths per second) through to 3,150 Hz (or 3.15kHz). In other parts of the world, including the United States and Australia, the measurement is taken over a frequency range of 125Hz ~ 4,000Hz
For convenience, the sound attenuating performance is expressed as a single figure. This could be the average in the loss of sound pressure (or loudness) at each of the measured frequencies. However, the measurements are taken using sensitive electronic equipment that does not take into account the sensitivity of average human hearing. The audible range for human hearing extends from about 20Hz ~ 20,000Hz Each human will hear things differently with sound pressures produced at 20 ~ 100Hz and beyond 4,000Hz being barely audible even when produced at very high sound pressures. Hearing is very much an individual thing. Generally the range of frequencies that can be clearly heard will diminish with age and the average human ear is most sensitive at frequencies of 3,000Hz ~ 4,000Hz. Basically, if pure sound was produced to the same level of loudness over a range of frequencies, sounds in the 3 ~ 4kHz frequency range will be perceived to be louder.